Add documentation for Datafile Collector

Change-Id: I247e1b2583e470e75156fc0449e85c0b86a1c8e8
Issue-ID: DCAEGEN2-642
Signed-off-by: elinuxhenrik <henrik.b.andersson@est.tech>

1 files changed, 97 insertions, 0 deletions

diff --git a/docs/sections/apis/DFC.rst b/docs/sections/apis/DFC.rst
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+==============================
+DFC (DataFile Collector)
+==============================
+
+:Date: 2018-09-21
+
+.. contents::
+    :depth: 3
+..
+
+Overview
+========
+
+DFC will orchestrate the collection of bulk PM data flow:
+    1. Subscribes to fileReady DMaaP topic
+    2. Collects the file from the xNF
+    3. Sends new event to DataRouter with file.
+
+Introduction
+============
+
+DFC is delivered as one **Docker container** which hosts application server and can be started by `docker-compose`.
+
+Functionality
+=============
+../images/DFC.png
+
+
+Paths
+=====
+
+GET /events/unauthenticated.VES_NOTIFICATION_OUTPUT
+-----------------------------------------------
+
+Description
+~~~~~~~~~~~
+
+Reads fileReady events from DMaaP (Data Movement as a Platform)
+
+
+Responses
+~~~~~~~~~
+
++-----------+-------------------------------------------+
+| HTTP Code | Description                               |
++===========+===========================================+
+| **200**   | successful response                       |
++-----------+-------------------------------------------+
+
+
+
+POST /publish
+--------------------------------------
+
+Description
+~~~~~~~~~~~
+
+Publish the collected file/s as a stream to DataRouter
+    - file as stream
+    - compression
+    - fileFormatType
+    - fileFormatVersion
+
+
+Responses
+~~~~~~~~~
+
++-----------+-------------------------------------------+
+| HTTP Code | Description                               |
++===========+===========================================+
+| **200**   | successful response                       |
++-----------+-------------------------------------------+
+
+Compiling DFC
+=============
+
+Whole project (top level of DFC directory) and each module (sub module directory) can be compiled using
+`mvn clean install` command.
+
+Maven GroupId:
+==============
+
+org.onap.dcaegen2.collectors
+
+Maven Parent ArtifactId:
+========================
+
+dcae-collectors
+
+Maven Children Artifacts:
+=========================
+
+1. datafile-app-server: DFC server
+2. datafile-dmaap-client: Contains implementation of DmaaP client
+3. datafile-commons: Common code for whole DFC modules
+
+